The Corona-4SF is a passive soapbar type dual coil pickup that has deep and rich lows and hits a punch in the midrange, it features waxed and shielded coils which results in the maximum noise reduction you can get from a pickup.
The Corona-4SF is equipped with 4 conductor wires, heavy formvar copper wire, ceramic bar type magnets and a 75mm magnetic field, this model is recommended for 4 string basses with less than 75mm spacing.
